Bicycle tire tread



FIG. 1 is a perspective view of a bicycle tire tread showing our new design, it being understood that the pattern is repeated uniformly throughout the circumference of the tread as shown schematically in solid lines, and the opposite side is substantially the same as that shown;

FIG. 2 is an enlarged fragmentary plan view showing the tread pattern in greater detail;

FIG. 3 is an enlarged fragmentary side elevation view thereof; and

FIG. 4 is a transverse section view taken along line 4--4 in FIG. 3 illustrating the profile of the tread.

The broken line illustration of the tire carcass is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a bicycle tire tread, as shown and described. 